Rotted Roof Rafters

Cut a replacement piece from pressure treated lumber.

Rotted roof rafters.

The cleat helps support the new overhang. Discard the wood in a garbage bin as you work to. The rotten wood will come away easily. Things you ll need stepladder or extension ladder helper tape measure 2 by 6 inch boards salt treated circular saw speed square reciprocating saw drill with 1 2 inch bit 1 2 inch wooden dowels wood glue hammer.

Use your tape measure to record the distance of both rafter legs. Measure the dimensions of the old rafters beneath your roofing surface. How to replace the rafters without removing the roof. Things you ll need pry bar reciprocating saw circular saw 2 by pressure treated lumber 1 by pressure treated lumber wood clamps screws screwdriver primer paintbrush paint oil based primer automotive body repair putty putty knife.

If the entire rafter was rotten use the. Measure the length of framing wood needed with a measuring tape. Slide one of the newly cut rafter legs into position directly next to the old rafter. If the dry rot is extensive enlist a contractor to replace the rotted.

Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. If it shows signs of rotting water damage or other wear you ll need to chop it out using a reciprocating saw. Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney. Clamp a 1 by backing board in place and screw the new rafter to it.

Cut away rotten or damaged rafters. Use a reciprocating saw to chop out the rotted rafter. Since roof decking is made from wood and wood composites it is particularly susceptible to rotting and water damage when continuously exposed to sustained or excess moisture. Remove the rotted wood with a chisel and pry bar.

How to replace rotted wood rafters.